baber/WOPTO huggingface dataset:
Patent CA-2125263-C (CA)
Inventor: THOMAS TERRY M
IPC: B65G41/00
Filed: 1994-06-06
Granted: 1996-04-02
Abstract: An  advanceable  auxiliary   conveying apparatus  that comprises a trackway and an elevated roadway and conveying assembly movably attached to the trackway.   The elevated roadway and conveying assembly is constructed to support a mobile conveyor thereon while receiving and conveying the material that is being discharged therefrom.  An access ramp is movably attached to the elevated roadway and conveying assembly by at least one extendable cylinder that is used to advance the ramp away from the elevated roadway and conveying assembly.   The elevated roadway and conveying assembly is equipped with elevation members that serve to elevate the elevated roadway and conveying assembly between a  first elevated position wherein the trackway is suspended by the elevated roadway for advancement relative thereto and a second elevated position wherein the elevated roadway and conveying apparatus is movably supported on the trackway for advancement  thereon.    Extension  and  retraction  of  the cylinder attached to the elevated roadway and ramp cause the trackway to be advanced forward and the elevated roadway and conveying assembly to be advanced on the trackway.
Patent CA-2129813-C (CA)
Title: 5-aminoflavone derivatives
Inventor: AKAMA TSUTOMU
IPC: C07D311/30
Filed: 1994-08-09
Granted: 2005-07-05
Abstract: The present invention is directed to 5-aminoflavone derivatives represented by the formula (I):   (see formula I) wherein R1 and R2 are the same or different and represent hydrogen or substituted or unsubstituted lower alkyl, X represents substituted or unsubstituted lower alkyl, lower alkenyl, lower alkynyl, halogen, hydroxy, substituted or unsubstituted lower alkoxy, NR3R4 (wherein R3 and R4 are the same or different and represent hydrogen, or substituted or unsubstituted lower alkyl, or R3 and R4 are taken together to form a heterocyclic group containing the nitrogen atom in the ring), lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, carboxy, lower alkoxycarbonyl, lower alkanoyl, azido, cyano, substituted or unsubstituted carbamoyl or lower alkylthiothiocarbonyl, Y1 and Y2 are the same or different and represent hydrogen, halogen or lower alkyl: or pharmaceutically acceptable salts thereof. The derivatives of the present invention are suitable for use as antibacterials and in anti-estrogenic and antitumour compositions.
Patent CA-2131001-C (CA)
Title: Stabilization of silicate solutions
Inventor: WINSTON ANTHONY E
IPC: C11D7/14
Filed: 1993-03-24
Granted: 1999-09-28
Abstract: The present invention is directed to aqueous cleaning compositions such as for household use or for cleaning electronic circuit assemblies comprising alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned and an anionic polymer which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution.
Patent CA-2131082-C (CA)
Inventor: SCHILLING DONALD L
IPC: H04B1/71
Filed: 1994-08-29
Granted: 2000-11-28
Abstract: A transmitter and receiver for spread spectrum communications using a Fourier series coefficients module, a notch gate, a fast Fourier transform module, and memory. The Fourier series coefficient module generates magnitude and phase values of a Fourier series. The notch gate notches the Fourier series coefficients at selected bands of frequencies. The selected band of frequencies are chosen so as not to provide interference with a preexisting user such as a cellular user, microwave user, or other radio communications. The fast Fourier transform generates from the notched Fourier series coefficients a spreading signal. The spreading signal has notches in its spectrum so as not to cause interference with the preexisting users. At the transmitter, the spreading signal is used to spread-spectrum process message data to generate a spread-spectrum signal for transmitting over a communications channel. At the receiver, the spreading signal is used to despread a receive spread-spectrum signal. At the receiver, the receive spread-spectrum signal has the advantage that the preexisting users are notched out and not part of the despread signal and therefore not part of the interference in the receiver detection circuits.
Patent CA-2132774-C (CA)
Inventor: DUVE JOHN P
IPC: H01H43/10
Filed: 1994-09-23
Granted: 1999-11-16
Abstract: A programmer/timer for appliances having cam actuated switches with a cam drum advanced by a motor driven four-stage speed-reducing gear train with a missing teeth type intermittent device. The third stop gear is readily interchangeable for changing the rate of cam advance. An auxiliary housing with auxiliary cam drum and switches may be added without altering the basic configuration of switches and advance mechanism.
Patent CA-2137044-C (CA)
Title: Liquid crystal display with patterned retardation films
Inventor: ABILEAH ADIEL
IPC: G02F1/133
Filed: 1994-11-30
Granted: 2005-05-24
Abstract: A multi-colored pixel for a twisted nematic liquid crystal display including red, green, and blue subpixels, wherein each subpixel includes a pair of substrates, a pair of polarizers, opposing electrodes, and a color personalized retardation film which compensates for the different wavelength of each color. The personalized retardation films of the different color subpixels results in elimination of the multi-gap approach and substantially eliminates the problem of different color leakages at different viewing angles, including normal. Also, one polymer based element, preferably a polyimide, functions as both a color filter and a retardation film in certain embodiments of this invention.
Patent CA-2140163-C (CA)
Inventor: KUPFERBERG MINEL
IPC: F24F7/06
Filed: 1995-01-13
Granted: 1999-04-20
Abstract: An exhaust fan to be mounted on a roof and for exhausting spent gases from a building, including a centrifugal fan scroll casing with a centrifugal fan impeller mounted on an axle within the casing and hav-ing an axis of rotation at right angles to the side members  of  the  scroll  casing.   A bifurcated  stack including two generally parallel passageways is con-nected  to  the  scroll  casing  so  that  the  stack  is upright and communicates with the outlet port of the scroll casing.  A ring defining an annulus may be pro-vided at the outlet end of the stack to induce ambient air to mix with the  spent  air exhausting  from the bifurcated tubular member.
Patent CA-2140827-C (CA)
Title: Non-adherent absorbent wound dressing
Inventor: COURT ANDREW DAVID
IPC: A61L15/60
Filed: 1995-01-23
Granted: 2006-02-28
Abstract: The invention concerns a wound dressing comprising a fibrous material impregnated with a composition said composition comprising: (a) from about 0.05% to 10% by weight of a natural gelling agent; (b) from about 1.0% to 10% by weight of a hydrocolloid; (c) from about 5.0% to 30.0% by weight of an alkylene glycol and (d) at least 50% by weight of water. The dressing has the advantages of being convenient, non-adherent, and suitable for use on exudating wounds.
Patent CA-2144812-C (CA)
Inventor: KETTLE PAUL J JR
IPC: B60T17/22
Filed: 1995-03-16
Granted: 1999-06-29
Abstract: An electro-pneumatic railroad braking system is provided which uses a digital computer to provide enhanced performance and flexibility.  The computer makes it possible to eliminate microswitches and other equipment used in present systems.          Compatibility is provided for several different electro-pneumatic braking systems by providing routines in the computer for each of the alternative braking systems, and selecting the routine to be used when the locomotive or other vehicle carrying the system is coupled to a train of other vehicles.
Patent CA-2145821-C (CA)
Title: Improvements in or relating to atm communication systems
Inventor: HAYTER ANDREW TIMOTHY
IPC: H04L12/56
Filed: 1995-03-29
Granted: 2005-12-20
Abstract: An ATM communication system having DBA, comprising storage means for DBA traffic, which storage means includes dedicated storage means for ABR traffic, the system being such that ABR bandwidth requests are allocated after all other DBA bandwidth allocations have been satisfied, means being provided for interrupting an ABR transmission, before a bandwidth allocation within which the said ABR transmission is included has been fully used, for the transmission of other higher priority DBA traffic.
Patent CA-2148808-C (CA)
Title: Stable liquid detergent compositions inhibiting dye transfer
Inventor: FREDJ ABDENNACEUR
IPC: C11D17/00
Filed: 1993-11-03
Granted: 1999-05-18
Abstract: The present invention relates to inhibiting dye transfer compositions comprising : (a) from 0.01 % to 5 % of a polyamine N-oxide polymer: (b) from 0.01 % to 1 % of a brightener; (c) from 5 % to 30 % of a non-aromatic anionic surfactant.
Patent CA-2150411-C (CA)
Title: Process for the water-repellent impregnation of plaster
Inventor: GERHARDINGER DIETER
IPC: C04B41/49
Filed: 1995-05-29
Granted: 2000-08-15
Abstract: Plaster is rendered water-repellent by impregnation with organosiloxanes containing Si-bonded hydrogen atoms and with alkali metal silicate. In particular, the water-repellent action is improved in the case of shaped plaster articles treated at high drying temperatures.
Patent CA-2150466-C (CA)
Title: Gas permeable materials
Inventor: WU HUEY SHEN
IPC: D04H1/68
Filed: 1993-05-25
Granted: 1998-12-08
Abstract: A gas permeable material having pores through it, in which the pore interiors are coated with the reaction product of a) an ester of a perfluoroalkyl alcohol and a poly-basic hydroxyl-carboxylic acid, and b) a melamine formsldehyde, urea-formaldehyde, or glycol modified formaldehyde. The material is oleophobic and is useful in filtration applictions and in garments.
Patent CA-2161190-C (CA)
Inventor: THULLIEZ VINCENT
IPC: C08L33/12
Filed: 1995-10-23
Granted: 2007-07-10
Abstract: L'invention vise des compositions à base de copolymères du fluorure de vinylidène et de comonomères fluorés éthyléniquement insaturés contenant au moins 75% en poids de fluorure de ninylidène comprennent du polychlorure de vinyle et une quantité efficace d'un polymère méthacrylique (compatiblilisant). Ces compositions présentent notamment des propriétés diélectriques améliorées, ce qui les rend particulièrement intéressantes pour le gainage d e câbles.
Patent CA-2162895-C (CA)
Title: Preparation of cyclopropane esters
Inventor: BOWDEN MARTIN
IPC: C07C69/65
Filed: 1994-05-25
Granted: 2003-11-25
Abstract: There is disclosed a process for the preparation of a lower alkyl ester of 3-(2-chlor-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethlcyclopropane  carboxylic acid which comprises the steps of (a) reacting a compound of the formula (I): CF3-CXC1-CH(OH)-CH=C(CH3)2, wherein X is chloro or bromo, with a tri-lower-alkyl orthoacetate containing up to four carbon atoms in each alkyl group in tho presence of at least a catalytic amount of an acid catalyst at an elevated temperature for a sufficient time to obtain a compound of the formula (III): CF3-CXC1-CH=CH-C(CH3)2-CH2CO2R, wherein R is an alkyl group containing up to four carbon atoms, and (b) treating said compound of formula (III) with at least one molar equivalent of a base to obtain said alkyl ester of 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethycyclopropane carboxylic acid. The products are useful as intermediates for insecticides.
Patent CA-2177133-C (CA)
Title: Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane
Inventor: TRAINHAM JAMES A III
IPC: C25B9/23
Filed: 1994-08-30
Granted: 2000-12-26
Abstract: The invention relates to a process for electrochemically converting anhydrous hydrogen halide. such as hydrogen chloride, hydrogen fluoride, hydrogen bromide and hydrogen iodide to essentially dry halogen gas, such as chlorine, fluorine, bromine and iodine gas, respectively. This process allows the production of high-purity halogen gas. In this process, molecules of essentially anhydrous hydrogen halide are fed through an inlet (18) of an electrochemical cell and are transported to the anode (14) of the cell.  The molecules of the essentially anhydrous hydrogen halide are oxidized at the anode of the cell to produce essentially dry halogen gas and protons which are transported through the membrane (12) of the cell.  The transported protons are reduced at the cathode (16).
Patent CA-2178961-C (CA)
Title: Method, post-processing filter, and video compression system for suppressing mosquito and blocking artifacts
Inventor: BRAILEAN JAMES CHARLES
IPC: H04N5/21
Filed: 1995-08-31
Granted: 2000-05-23
Abstract: The visibility of mosquito and blocking artifacts in a video compression system are effectively suppressed by calculating a postprocessed pixel intensity (300). A post-processed pixel intensity is determined using a predetermined noise variance (304), a predetermined autocorrelation coefficient (306), and a local neighbourhood of pixels (308) that includes a plurality of previously post-processed pixel intensities and a plurality of original pixel intensities. This eliminates the dependency on local signal and noise power estimates.
Patent CA-2179776-C (CA)
Title: Method and apparatus for transducerless flux, position and velocity estimation in drives for ac machines
Inventor: LORENZ ROBERT D
IPC: H02P21/00
Filed: 1994-12-16
Granted: 2001-03-27
Abstract: Power is provided to the stator windings of an AC motor (31) from inverter d rive system (38). The inverter (38) receives command signals for the fundamental frequency d and q axis currents (40, 41) and hig her frequency voltage command signals (42) from a positi on and velocity observer (43).  The position and velocity observer (43) uses in formation from the signals (44, 45) to provide estimates  for the rotor position and speed provided as output signals (47, 48). The direct fie ld oriented controller (50) includes a flux regulator (5 8), a torque calculator (60) and a rotor flux observer (61) and provide the inverter (38)  with the fundamental frequency current command signals (40 41). Conventional induction motors can be provided with sufficient spatial v ariations in the stator winding impedance as a function of rotor position by varying the depth and/or width of the slots over the rotor condu ctive bars or by varying the cross-section of the bars, or by filling or partially filling some of the slots.
Patent CA-2182006-C (CA)
Inventor: GUR ALI
IPC: B65B9/20
Filed: 1995-01-12
Granted: 2000-06-20
Abstract: A method and apparatus for removably securing flexible packages (70) to a display carrier strip (18) so that the packages can be removed therefrom without damaging the sealed condition of the packages. The apparatus includes sealing jaws (52, 53)  which  form transverse seals on a package preform that is separated into two packages. The sealing jaws have attached to the underside thereof sealing blocks which carry sealing elements that heat-seal  the display carrier strip to the top of each filled sealed package simultaneously with the forming of  the  transverse  seals by the sealing jaws.  The attachment of the packages to the carrier strip is  greatly simplified compared with prior art attachment systems.
Patent CA-2184604-C (CA)
Title: Bicyclic carbamates
Inventor: BROWN MATTHEW F
IPC: A61P17/00
Filed: 1995-01-19
Granted: 1999-05-04
Abstract: The present invention relates to bicyclic carbamate compounds and, specifically, to compounds of formula (I), wherein X, Y, R1 and R as defined in the specification. The compounds of this invention are useful in the treatment of asthma, rheumatoid arthritis, osteoarthritis, bronchitis, chronic obstructive airways desease, psoriasis, allergic rhinitis, atopic dermatitis, shock, other inflammatory diseases, and other conditions where the treatment is effected or facilitated by blocking the leukotriene D4 receptor.
Patent CA-2184665-C (CA)
Title: Shock tool for use in directional drilling
Inventor: WENZEL WILLIAM RAY
IPC: E21B7/08
Filed: 1996-09-03
Granted: 2000-09-19
Abstract: A shock tool includes a first tubular member, a second tubular member and a third tubular member.  The first tubular member has an interior bore that extends between a first end and a second end.  The second tubular member has an interior bore that extends between a first end and a drive linkage attachment  end.   The  second tubular member  is  rotatably supported by both radial  and thrust bearings within the interior bore of the first tubular member with the drive linkage attachment end protruding from the second end of the first tubular member.  The third tubular member has an interior bore that extends between a bit connection end and a second end.   The  second end of the third tubular member being telescopically received within the interior bore at the first end of the second tubular member with the bit connection end protruding.  The third tubular member is capable of limited reciprocal movement relative to the second tubular member. Shock absorbing medium is disposed between the third tubular member and the second tubular member.  This shock tool has the ability to bear radial and thrust loads, in addition to shock loading.
Patent CA-2184722-C (CA)
Title: An indexable insert
Inventor: ZITZLAFF WOLFGANG
IPC: B23B27/14
Filed: 1995-07-12
Granted: 1999-09-07
Abstract: The indexable insert possesses two parallel cutting edges (12, 14) on opposite sides of an indexable insert body (10) in the form of a rectangular block. In the intermediately placed top surface (20) descending toward the center line (M) there is a chipbreaking structure comprising alternating projections (16) and recesses (18). These projections and recesses constitute a row, centered on the center line (M), of spherical-like chipbreaking bodies, between which concave chip guiding surfaces are formed. There results an even flow of chips with the formation of short chips, which are free of grooves and tears along the edges.
Patent CA-2185736-C (CA)
Inventor: ERAMAJA MARKKU
IPC: B03B4/00
Filed: 1996-09-17
Granted: 2005-11-15
Abstract: Apparatus for separating heavy particles of material from lighter particles, e.g. for separating impurities from powdery or fragmental material, such as fibres or chips, said apparatus comprising a carrier surface pervious to gas, onto which the material to be treated is supplied, as well as means for applying gas impacts through the carrier surface to the material to be treated. The apparatus comprises special valve elements disposed below the carrier surface to produce gas impacts.
Patent CA-2186349-C (CA)
Inventor: BUNNELL JAMES C
IPC: G06F11/34
Filed: 1995-04-27
Granted: 2008-09-23
Abstract: A central processing unit ("CPU") activity monitor and method provides CPU (28) activity information. The CPU activity monitor includes a timer and an activity event counter for receiving a plurality of mode signals from the CPU (28), a cache miss signal from a cache memory system (30), and a clock signal from a clock (26). An activity-to-inactivity value defines when the CPU transitions from an active state to an inactive state. An activity threshold defines when the CPU transitions from an inactive state to an active state.
Patent CA-2186714-C (CA)
Inventor: LONGO ARESO CARLOS
IPC: A23L13/60
Filed: 1996-09-27
Granted: 2001-12-04
Abstract: The invention seeks to obtain a collagen film with improved extensibility characteristics, preventing or diminishing the structural rigidity of collagen films of this kind. This purpose is achieved by providing such collagen with an oily additive, such as oils or fats, thereby rendering such films suitable to be used in ham stuffing machines.      This beneficial effect is obtained when the addition of oily additives lies between 1 and 60% of the collagen contents measured as a dry extract of the film.
Patent CA-2188429-C (CA)
Inventor: MAYER DAVID W
IPC: A61F2/86
Filed: 1995-04-10
Granted: 2000-10-31
Abstract: A body compatible stent is formed of multiple fila-ments arranged in two sets of oppositely directed helical windings interwoven with one another in a braided config-uration.  Each of the filaments is a composite including a central core (24) and a case (26) surrounding the core (24). In the more preferred version, the core is formed of a ra-diopaque and relatively ductile material, e.g. tantalum or platinum.  The outer case (26) is formed of a relatively re-silient material, e.g. a cobalt/chromium based alloy.  Favor-able mechanical characteristics of the stent are determined by the case (26), while the core (24) enables in vivo imag-ing of the stent.  The composite filaments are formed by a drawn filled tubing process in which the core (24) is inserted into a tubular case (26) of a diameter substantially more than the intended final filament diameter.  The composite filament is cold-worked in several steps to reduce its diameter, and annealed between successive cold-working steps.  After the final cold working step, the composite filament is formed into the desired shape and age hardened. Alternative composite filaments employ an intermediate barrier layer (86) between the case (26) and core (24), a biocompatible cover layer surrounding the case (26), and a radiopaque case (26) surrounding a structural core (24).
Patent CA-2190440-C (CA)
Inventor: MICKOS JAN
IPC: H02K5/132
Filed: 1996-11-15
Granted: 2000-01-11
Abstract: The motor (1) is surrounded by a cooling jacket (5) having inlet (8) and outlet (9) for cooling medium.   The jacket (5) is provided with a concentric partition wall (6) which devide the room inside the jacket into two gaps (7) and (8) respectively of different widths.
Patent CA-2190959-C (CA)
Title: Combined two-part reducing agent/humectant shaving system for improved shaving comfort
Inventor: STONER KARLA LEUM
IPC: A61Q9/02
Filed: 1995-05-16
Granted: 2000-07-25
Abstract: The present invention relates to a method of improving shaving comfort by softening the hair to be shaved so as to reduce the cutting force required to cut it. The novel method comprises carrying out the following sequential steps: (a) contacting an area of hair to be shaved with a reducing agent that breaks disulfide linkages in hair, (b) contacting the area of hair treated in step (a) with a humectant and allowing it to dry or partially dry; (c) contacting the area treated in step (b) with water to hydrate the hair, and (d) shaving the hydrated hair of step (c.
Patent CA-2194042-C (CA)
Inventor: VELAYUTHA RAJ
IPC: F16D69/02
Filed: 1996-12-27
Granted: 2000-02-15
Abstract: A dual type composition brake block member specifically designed for use in predetermined type brake systems.  The brake block member consists of a brake surface having a predetermined configuration and a predetermined surface area.  It further includes a first low friction type composition material having a predetermined friction range and extends over a first predetermined portion of the surface area of the brake surface. It further includes a second high static friction type composition material having a second predetermined friction range.  The second high static friction type composition material extends over a second portion of the surface area of the brake surface.  One of such first low friction type composition material and such second high static friction type composition material being formed as a discrete insert type member and the opposite one of such first low friction type composition material and such second high static friction type composition material being formed around the insert of such first low friction type composition material and such second high static friction type composition material during production of the brake block member. Such one of such first low friction type composition material and such second high static friction type composition material being formed as the discrete insert member extends into such opposite one of such first low friction type composition material and such second high static friction type composition material to a predetermined depth of the brake block member.